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Frederick G. Cottrell
Frederick G. CottrellBorn: 1877Birthplace: Oakland, Calif. Electrostatic precipitator—Cottrell's invention used high voltage electricity to remove from 90 to 98% of the ash, dust, and acid…February Current Events 2024: Disaster News
Top of Page World News | U.S. News | Science & Technology News | Current Events This Week The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you…air pollution
(Encyclopedia) air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air…Trending
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